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(No Model.)

E. M. HAMILTON.

INKING PAD FOR TYPE WRITERS. No. 357,669. v Patented Feb. 15, 1887.

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UNITED STATES PATENT OFFICE EMERY M. HAMILTON, OF NEW YORK, N. Y.

lNKlNG-PAD FOR TYPE-WRITERS.

SPECIFICATION forming part of Letters Patent No. 357,669, dated February 15, 1887. Application filed April 1, 1886. Renewed December 2, 1886. Serial No. 220,530. (No model.)

To all whom it may concern.-

Be it known that I, EMERY M. HAMILTON, of the city of New York, in the county and State of New York, and a citizen of the United States of America, have invented a certain new and useful Improvement in Inking-Pads for Type-Writing Machines, of which the following is a specification, reference being bad to the accompanying drawings, formingpart of the same, in which Figure 1 is a central vertical section of my inking-pad and ink-regulating case in which the pad is held, and Fig. 2 is a face view of said pad.

My inking-pad herein described and claimed is adapted and intended for use in a type-writing machine in which the printing is performed by a series of levers arranged radially around a circle, each carrying a type on its inner end, which is carried to the center of the circle against the paper, where the printing-impression is made.

My pad consists of an annulus, A, formed of felt or some analogous material which will hold ink and deliver it to the type when the latter is pressed upon it. I place this pad in acase formed of the two parts B and G, the part B being a short cylinder having an annular inwardly-projecting flange, a, at or near the upper end, and G is an annular cover or cap provided with a downwardly-projecting rim, b, on the inner face of which is a female screwthread, which fits into a corresponding male screw-thread on the outside of the cylinder B.

The relative diameters of the pad A, the cylinder B, and flange a are such that when the pad is placed centrally within the said cylinder the inner edge of the pad will project beyond the inner edge of the said flange, and the type is inked by being pressed against the under face of this projecting part of the pad.

Ink may be supplied to the pad in any suitable way-as, for example, by removing the cap 0 and spreading ink upon the pad with a brush, the ink becoming quickly absorbed by and distributed through the pad; or the ink may be spread upon the surface of a smooth board or stone, and the pad removed from the case and laid down upon the ink until suflicient of it is absorbed into the pad. If some space is left between the outer edges of the pad and the sides of the case, as shown in Fig. 1, ink will be pressed out into the space as the cap is screwed down, as at c of said figure,

which will be reabsorbed into the pad as the pad gives off its ink to the type. By screwing down or up the cap on the cylinder the delivery of the ink at the said inkingsurface may be regulated.

D represents one of the type-levers of a typeprinting machine such as it is intended my annular pad is to be used in. It has a sliding fulcrum at d. The inner end carries a type, 6, and the outer end is pivoted to a crank,f. The lever is represented in the drawings in position with the type c in contact with the inking pad. Now, if the crank is rocked over to the right a half-revolution, or nearly so, it is evident that the type will describe the curve shown by the dotted line 9, and be carried to the center of the cap 0, which is understood to be the center of the type-writing machine or the circle of radial levers, at which point the paper to be printed upon is placed. The reverse motion of the crank will bring the typebar into contact with the inking-pad. The printing mechanism thus generally indicated, and for which my annular pad is adapted, is more fully described in the specification for a lever-movement for typewriters, for which movement I filed in the United States Patent Office an application for Letters Patent on the 22d day of June, 1883.

What I claim as my invention, and desire to secure by Letters Patent, is-

In a type-writing machine, the annular inking pad A and the described case, consisting of the parts B and O, constructed and combined to operate as and for the purpose specified.

' EMERY M. HAMILTON.

Witnesses:

A. G. N. VERMILYA, A. S. FITCH. 

